Search results
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Beach debris survey Signy Island, South Orkney Islands, 2002/03
1994/95 (an increase of 38% and 7% since 2001/02 respectively). There was an increase in the number of ... /94. Such a continued increase in the number of these packaging bands found indicates that the ban on ... longevity of plastics and other materials with a high resistance to degradation in the marine environment ... and size categories. A total of 54 items weighing 27.36kg were collected. The number of items found ...
Meeting Document : SC-CAMLR-XXII/BG/12 : Author(s): Delegation of the United Kingdom
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Scientific Abstracts 2002
albatrosses compared to last year, but the number of items (63) remains well above the mean since annual ... of conservation measures by monitoring indices which might affect Antarctic marine living resources ... penguins. Adélie penguins foraged signifi- cantly farther (mean 100 km) from the colony than chinstrap ... penguins (mean 58 km) in 2000 but not in 2001 (mean 58 km and 35 km respectively). In 2000 ... papers presented in 2002. It corresponds to the Twenty-first Meetings of the CCAMLR Commission and ... ‘submitted’ or ‘in press’ with details of the publisher, if known; (iii) scientific papers not intended for ... all scientific papers presented for the consideration of the annual meetings of the CCAMLR Commission ... Scientific Committee and is published only in English. There are four categories of papers: (i) scientific ...
Document : Site Section: Publications
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Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey
higher than average catch of night trawls. The average thickness of krill swarm in the daytime was ... Abstract: Antarctic krill (Euphausia superba Dana) is a key species in the Southern Ocean ... fisheries. In this paper, using the multi-frequency acoustic data and the fishery data, the relationship ... between the acoustic scattering coefficient of krill swarms and catch, catch per unit effort (CPUE), catch ...
Meeting Document : WG-EMM-17/44 : Author(s): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu
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Gear loss reported by longline fishing vessels for the 2018 and 2019 fishing seasons
. Vessels reported 1 632 km of line lost in the Convention Area, of which 27% were complete lines. There was ... no difference in the relative reporting of lost hooks by gear type, with rates of loss recorded at ... 0.3% for each gear type for the past two seasons. There was a significant difference in the frequency ... for Spanish or autoline. It is important to improve reporting in order to accurately quantify rates of ...
Meeting Document : WG-FSA-2019/18 : Author(s): CCAMLR Secretariat
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New Zealand Antarctic research programme
reconnaissance and photography are used in the Ross Sea sector of Antarctica to determine where Adelie penguins ... world population. Some rookeries are photographed in all, or most, of the seasons to study the pattern ... repeating the photographic surveys of rookeries on Ross Island using helicopters in December and January to ... Abstract: Since parameters of penguin populations may provide good indices of the abundance of ...
Meeting Document : WG-CEMP-92/24 : Author(s): P.R. Wilson (New Zealand)
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Mackerel icefish size and age at South Georgia and Shag Rocks
and 2002. Most surveys were between December and February (summer), with one in September (Spring). Mean ... between localities. To compensate for variation in the time of surveys, the mean TL of age-classes were ... mean TL of age-classes 1, 2 and 3 were, respectively, 14.5, 23.8 and 30.2 cm at South Georgia, and 18.6 ... , 26.8 and 33.6 cm at Shag Rocks. The mean TL of each age-class of C. gunnari at Shag Rocks ...
Meeting Document : WG-EMM-03/7 : Author(s): A.W. North (United Kingdom)
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Spectra analysis of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... , Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula, sea ice cover and chlorophyll-a in the ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ...
Meeting Document : WG-EMM-04/46 : Author(s): M. Naganobu and K. Kutsuwada (Japan)
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Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
krill (4.9 to 12.0 dB) and fish (-4.0 to-0.2 dB). The distributions and mean Sv of krill aggregations ... of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west of the South ... (-4.0 to -0.2 dB). The distributions and mean Sv of krill aggregations in the Elephant Island ... Islands. The mean length/height ratio of krill aggregations in the west of the South Shetland Islands ...
Meeting Document : SG-ASAM-17/04 : Author(s): S.-G. Choi, K. Lee and D. An
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Predicting distribution and relative abundance of mid-trophic level organisms using oceanographic parameters and acoustic backscatter
Abstract: Data on the distribution and abundance of mid-trophic level organisms (MTLOs) in the ... predicted backscatter reasonably well in the Pacific sector of the SO, and in an independent dataset in the ... distribution of MTLOs in other parts of the SO. Author(s): P.C. Escobar-Flores, R.L. O’Driscoll and J.C ... proxy for MTLO abundance in the epi- and mesopelagic zones. Boosted regression trees and generalised ...
Meeting Document : WG-EMM-18/P07 : Author(s): P.C. Escobar-Flores, R.L. O’Driscoll and J.C. Montgomery
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Otolith elemental signatures reveal habitat shift of Electrona carlsbergi
the biological data in 1990s, however, the habitat shift of this species was still unclear. The ... waters of sub-Antarctic zone and spend the first year of life in this region. Those individuals move ... to test habitat shift and life history processes of fish species in the Southern Ocean. Moreover ... which circumpolar distributed between the warm waters of the subtropical confluence zone and the ...
Meeting Document : WG-FSA-17/65 : Author(s): L. Wei and G.P. Zhu